Damping device for distributed sonic sensor

Abstract

The utility model relates to the technical field of sensor damping devices, in particular to a damping device for a distributed sonic sensor. According to the utility model, by designing the damping frame, the damping cavity in the damping frame and the elastic damping piece installed on the cavity wall of the damping cavity, a stable installation environment capable of eliminating vibration is provided for the distributed acoustic wave sensor. By means of the design, the accuracy of data measured by the sensor is effectively improved, interference of external vibration on measurement results is avoided, the sensor can reflect the real condition of sound waves more accurately, and the reliability and precision of monitoring are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of sensor vibration damping devices, specifically a vibration damping device for a distributed acoustic wave sensor. Background Technology

[0002] In many fields, such as industrial monitoring, security systems, and geological exploration, the accurate detection and analysis of sound wave signals are crucial. Therefore, sound wave sensors are commonly used to detect sound wave signals.

[0003] Currently, most commonly used acoustic wave sensors are distributed acoustic wave sensors. During installation, solid brackets are typically used, or the distributed acoustic wave sensor is directly mounted on the device to be monitored. This installation method is quick and simple, and can effectively monitor the acoustic wave signals emitted by the device. However, this installation method also has some drawbacks, namely, it does not consider the negative impact of the operating vibration of the device under monitoring on the distributed acoustic wave sensor. In practical applications, the operating vibration of the device under monitoring often leads to signal distortion caused by the distributed acoustic wave sensor, resulting in inaccurate measurement data and measurement errors.

[0004] It is evident that the vibration problem of distributed acoustic sensors has a serious impact at present and therefore urgently needs to be solved. Utility Model Content

[0005] In order to avoid and overcome the technical problems existing in the prior art, this utility model provides a vibration damping device for a distributed acoustic wave sensor, which can effectively eliminate the vibration of the distributed acoustic wave sensor and improve the accuracy of its measurement data.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A vibration damping device for a distributed acoustic wave sensor includes a vibration damping frame that can be fixedly installed on the device to be tested. A vibration damping cavity is formed inside the vibration damping frame. An elastic vibration damping element is installed on the cavity wall of the vibration damping cavity. The distributed acoustic wave sensor is fixedly installed on the vibration damping end of the elastic vibration damping element.

[0008] As a further embodiment of this utility model: the elastic damping component includes a damping spring with one end fixedly installed on the inner wall of the damping cavity, and the other end of the damping spring abutting against the surface of the cuboid-shaped distributed acoustic wave sensor, and damping springs abutting against the three surfaces of each vertex of the distributed acoustic wave sensor.

[0009] As a further improvement of this utility model: the damping cavity is a cuboid shape adapted to the distributed acoustic wave sensor, and the damping cavity and the distributed acoustic wave sensor are in the same direction; each damping spring is compressed between the damping cavity and the surfaces of the distributed acoustic wave sensor that are parallel and close to each other.

[0010] As a further embodiment of this utility model: the shock-absorbing frame is a rectangular hollow frame, which includes multiple long support rods arranged along the long axis, wide support rods arranged along the wide axis, and high support rods arranged along the high axis. The ends of the long support rods, wide support rods and high support rods that cooperate with each other are fixed to each other by a tripod to assemble the hollow frame.

[0011] As a further embodiment of this utility model: a cuboid mounting cavity is formed inside the shock-absorbing frame, and spring support plates are fixedly installed on each cavity wall of the mounting cavity, and the spring support plates surround each other to form the shock-absorbing cavity.

[0012] As a further improvement of this utility model: each spring support plate is threaded with a bolt, the tail end of the shock-absorbing spring is coaxially fixedly sleeved on the bolt, and an elastic washer is fixedly installed at its front end.

[0013] As a further embodiment of this utility model: the spring support plate includes a wide support plate extending along the wide axis of the mounting cavity and a high support plate extending along the high axis of the mounting cavity.

[0014] As a further improvement of this utility model: a front panel is installed on the side of the shock-absorbing frame opposite to the wiring port of the distributed acoustic wave sensor, and a wiring hole is reserved on the front panel; sound insulation plates are covered on all other sides.

[0015] As a further improvement of this utility model, a high support plate that is coplanar with the front panel and located on both sides of the front panel is integrally formed with the front panel.

[0016] As a further embodiment of this utility model: there are four long support rods, four wide support rods, and four tall support rods; there are four wide support plates; and there are eight tall support plates.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model provides a stable and vibration-eliminating installation environment for distributed acoustic wave sensors by designing a vibration-damping frame and an internal vibration-damping cavity, as well as elastic vibration-damping components installed on the cavity wall. This design effectively improves the accuracy of sensor measurement data, avoids interference from external vibrations on measurement results, enables the sensor to more accurately reflect the true situation of sound waves, and improves the reliability and accuracy of monitoring.

[0019] 2. A shock-absorbing spring is used as an elastic shock absorber. One end of the spring is fixedly installed on the inner wall of the shock-absorbing cavity, and the other end abuts against the surface of the distributed acoustic wave sensor. Shock-absorbing springs are set on three sides of each corner. This design ensures that the sensor can get a uniform shock absorption effect in all directions. It can not only effectively absorb and disperse vibration energy, but also ensure the stability and safety of the sensor during installation and use.

[0020] 3. The damping cavity is designed as a cuboid shape to fit the distributed acoustic wave sensor and is aligned with the sensor's axes. This allows each damping spring to be compressed more precisely between the damping cavity and the sensor, thereby improving the targeting and effectiveness of the damping. This design not only optimizes the damping effect but also makes the sensor installation more convenient and quick.

[0021] 4. The shock-absorbing frame adopts a rectangular hollow frame design, assembled with multiple long support rods, wide support rods, and tall support rods in conjunction with a tripod. This not only reduces the weight of the entire device but also enhances the stability and load-bearing capacity of the frame. Simultaneously, the hollow design facilitates ventilation and heat dissipation, extending the service life of the sensor and shock-absorbing device.

[0022] 5. A rectangular mounting cavity is formed inside the damping frame, and spring support plates are fixedly installed on the walls of each cavity. This not only provides a stable mounting base for the damping springs, but also enhances the damping effect by forming the damping cavity through the enclosure of the spring support plates. This compact and rationally designed structure improves the reliability and practicality of the damping device.

[0023] 6. A coaxial fixed bolt is attached to the tail end of the damping spring, and an elastic washer is fixedly installed at its front end. This not only enhances the fixation and stability of the damping spring, but also further improves the damping effect through the buffering effect of the elastic washer. This combined design enables the damping device to perform excellently in various vibration environments.

[0024] 7. The spring support plate is subdivided into a wide support plate and a high support plate, which extend along the long axis, wide axis and high axis of the mounting cavity, respectively. This design not only makes the structure of the shock absorption device clearer and more reasonable, but also improves its shock absorption capacity in all directions, which helps to optimize the shock absorption effect and improve the stability and reliability of the device.

[0025] 8. Install a front panel on the side of the shock-absorbing frame opposite the wiring port of the distributed acoustic wave sensor, and reserve wiring holes. Cover all other sides with sound insulation plates. This not only facilitates the wiring and installation of the sensor, but also effectively reduces the interference of external noise on the sensor measurement results through the sound insulation plates, thereby improving the practicality and measurement accuracy of the shock-absorbing device.

[0026] 9. The front panel and the high support plates on both sides are integrally molded, which not only enhances the overall integrity and stability of the shock absorption device, but also simplifies the assembly process and improves production efficiency. At the same time, this integral design also helps optimize the shock absorption effect and improve the device's performance.

[0027] 10. There are four long support rods, four wide support rods, and four tall support rods, four wide support plates, and eight tall support plates. This not only ensures the stability and load-bearing capacity of the damping frame, but also makes the damping device more balanced and reasonable in structure. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the internal structure of the shock-absorbing frame in this utility model.

[0029] Figure 2 This is a schematic diagram showing the disassembled structure of the shock-absorbing frame and the sound insulation board in this utility model.

[0030] Figure 3 This is a schematic diagram of the overall structure of this utility model.

[0031] In the diagram: 1. Vibration damping frame; 11. Vibration damping cavity; 111. Long support rod; 112. Wide support rod; 113. High support rod; 114. Tripod; 2. Elastic damping component; 21. Bolt; 22. Damping spring; 23. Elastic gasket; 3. Spring support plate; 31. Wide support plate; 32. High support plate; 4. Front panel; 5. Sound insulation board; 6. Distributed acoustic wave sensor. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figures 1-3 This utility model includes a shock-absorbing frame 1, an elastic shock-absorbing component 2, a spring support plate 3, a front panel 4, and a sound insulation plate 5. The distributed acoustic wave sensor 6 is fixed inside the shock-absorbing device in an omnidirectional wrapping manner.

[0034] The shock-absorbing frame 1 is a rectangular hollow frame, including four long support rods 111 arranged along the long axis, four wide support rods 112 arranged along the width axis, and four high support rods 113 arranged along the height axis. All support rods are made of angle iron, and their specific dimensions are adjusted according to the distributed acoustic wave sensor 6 so that the distributed acoustic wave sensor 6 can be stably installed in the shock-absorbing cavity 11. The mating ends of each long support rod 111, wide support rod 112, and high support rod 113 are provided with riveting holes and are connected to each other by a tripod 114. They are then fixed together by rivets or screws to assemble the hollow frame.

[0035] The damping frame 1 has a cuboid mounting cavity inside. Spring support plates 3 are fixedly mounted on the walls of each cavity, and the spring support plates 3 surround each other to form the damping cavity 11. The spring support plates 3 include four wide support plates 31 extending along the width axis of the mounting cavity and eight high support plates 32 extending along the height axis of the mounting cavity. Each support plate also has riveting holes at its ends and is fixedly mounted to the eight surfaces of the mounting cavity by rivets or screws.

[0036] Each spring support plate 3 is threaded with a bolt 21. The tail end of the shock-absorbing spring 22 is coaxially fixed to the bolt 21 and glued in place. At the same time, an elastic washer 23 is fixedly installed at its front end, which is also glued in place.

[0037] Multiple wiring ports are installed on the front end face of the distributed acoustic wave sensor 6. A front panel 4 is installed on the side of the shock-absorbing frame 1 opposite to its front end, and the front panel 4 has reserved wiring holes to facilitate the connection of subsequent data cables. On the other sides of the shock-absorbing frame 1, a sound insulation board 5 is glued to each other. In order to improve the fit between the sound insulation board 5 and the shock-absorbing frame 1, the position where the sound insulation board 5 fits with the tripod 114 is cut into a stepped shape to form an integrated planar structure with the tripod 114.

[0038] During the installation of the distributed acoustic sensor 6, first assemble half of the shock absorption device, then install the distributed acoustic sensor 6 in it, and then install the other half of the shock absorption device to make the entire distributed acoustic sensor 6 stably installed in it. Finally, fix the shock absorption device on the monitoring equipment with glue or other fixing methods.

[0039] During the monitoring process, the vibration is transmitted to the damping device. The twelve damping springs 22 convert the vibration into elastic potential energy and transmit it to the distributed acoustic wave sensor 6. Under the action of the twelve damping springs 22, the distributed acoustic wave sensor 6 generates slight elastic swaying and continuously monitors the acoustic wave signal.

[0040] In the scientific monitoring process, vibration is precisely and effectively managed to ensure the accuracy of the acquired acoustic data. Twelve high-performance damping springs 22, as the core component of the entire damping device, not only possess excellent mechanical properties but also deform under vibration, effectively converting mechanical vibration energy into elastic potential energy. This ensures the effective absorption and storage of vibration energy while reducing the potential impact of vibration on other parts of the system. As the elastic potential energy accumulates, it is further transferred to the distributed acoustic sensors 6. These sensors are highly sensitive acoustic measurement devices capable of capturing and analyzing subtle changes in acoustic signals. Under the action of the twelve damping springs 22, the sensors produce slight elastic swaying. This swaying is not meaningless movement but a response of the sensor's internal mechanical structure to the release of elastic potential energy, enabling the sensor to more accurately perceive external acoustic signals.

[0041] During continuous monitoring, the distributed acoustic sensor 6 utilizes this slight elastic vibration to acquire and analyze acoustic signals in real time. The sensor's internal signal processing circuitry converts the captured acoustic signals into electrical signals, and then performs filtering, amplification, and digitization through complex algorithms to extract useful acoustic information. This information is crucial for monitoring and analyzing the characteristics, location, and activity status of acoustic sources.

[0042] In summary, the entire monitoring process involves multiple scientific aspects, including vibration transmission, energy conversion, elastic swaying, and acoustic signal monitoring. Through precise design and control, these aspects together constitute a highly efficient and stable monitoring system, providing strong technical support for scientific research, industrial monitoring, and safety protection.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A vibration damping device for a distributed acoustic wave sensor, characterized in that, It includes a shock-absorbing frame (1) that can be fixedly installed on the device to be tested. The shock-absorbing frame (1) has a shock-absorbing cavity (11) inside. An elastic shock absorber (2) is installed on the cavity wall of the shock-absorbing cavity (11). A distributed acoustic wave sensor (6) is fixedly installed on the shock-absorbing end of the elastic shock absorber (2).

2. The vibration damping device for a distributed acoustic wave sensor according to claim 1, characterized in that, The elastic damping component (2) includes a damping spring (22) with one end fixedly installed on the inner wall of the damping cavity (11), and the other end of the damping spring (22) abutting against the surface of the cuboid distributed acoustic wave sensor (6), and the damping spring (22) abutting against the three surfaces of each vertex of the distributed acoustic wave sensor (6).

3. The vibration damping device for a distributed acoustic wave sensor according to claim 2, characterized in that, The damping cavity (11) is a cuboid shape adapted to the distributed acoustic wave sensor (6), and the axes of the damping cavity (11) and the distributed acoustic wave sensor (6) are in the same direction; each damping spring (22) is compressed between the surfaces of the damping cavity (11) and the distributed acoustic wave sensor (6) that are parallel and close to each other.

4. A vibration damping device for a distributed acoustic wave sensor according to any one of claims 1-3, characterized in that, The shock-absorbing frame (1) is a rectangular hollow frame, including multiple long support rods (111) arranged along the long axis, wide support rods (112) arranged along the wide axis, and high support rods (113) arranged along the high axis. The ends of the long support rods (111), wide support rods (112) and high support rods (113) that cooperate with each other are fixed to each other by a tripod (114) to assemble the hollow frame.

5. The vibration damping device for a distributed acoustic wave sensor according to claim 4, characterized in that, The interior of the shock-absorbing frame (1) has a rectangular mounting cavity. Each cavity wall of the mounting cavity is fixedly installed with a spring support plate (3), and the spring support plates (3) surround each other to form the shock-absorbing cavity (11).

6. The vibration damping device for a distributed acoustic wave sensor according to claim 5, characterized in that, Each spring support plate (3) is threaded with a bolt (21), and the tail end of the shock-absorbing spring (22) is coaxially fixedly sleeved on the bolt (21), and an elastic washer (23) is fixedly installed at its front end.

7. The vibration damping device for a distributed acoustic wave sensor according to claim 6, characterized in that, The spring support plate (3) includes a wide support plate (31) extending along the wide axis of the mounting cavity and a high support plate (32) extending along the high axis of the mounting cavity.

8. The vibration damping device for a distributed acoustic wave sensor according to claim 7, characterized in that, A front panel (4) is installed on the side of the shock-absorbing frame (1) opposite to the wiring port of the distributed acoustic sensor (6), and a wiring hole is reserved on the front panel (4). All other sides are covered with sound insulation plates (5).

9. A vibration damping device for a distributed acoustic wave sensor according to claim 8, characterized in that, The high support plate (32) is coplanar with the front panel (4) and located on both sides of the front panel (4) and is integrally formed with the front panel (4).

10. A vibration damping device for a distributed acoustic wave sensor according to claim 9, characterized in that, There are four long support rods (111), four wide support rods (112), and four tall support rods (113); there are four wide support plates (31); and there are eight tall support plates (32).

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